Sky Ephemerides

See also: Object Observability - Daily Almanac - Sky Calendar

This tool produces a nightime calendar of phenomena for a single site.The listing includes

  • Sun rise and set times
  • Astronomical twilights, both in civil time and LST
  • Moon rise and set times and phase for eachnight in the month

All times are given for the local time, including daylight savingtimes when applicable. Please be aware that the dates of the change of savingtimes are generally not correct, and there may be difference with local time around these dates. 

Select site, month and year, then press Compute.

More detailed information is provided is a separate document Notes for Skycalc by John Thorstensen.


Year: From:To:


SkyCalendar provided by courtesy of John Thorstensen, Dartmouth